News and articles from Topstar

Even trace amounts of moisture in hygroscopic resins can lead to hydrolysis, bubbles, and short shots, thus reducing the first-pass yield. Dehumidifying dryer address this problem by providing reliably low dew point drying air, ensuring that the polymer entering the injection molding machine is stable and its performance is predictable. Topstar’s dehumidifying drying solutions stand… Continue reading Why can Topstar dehumidifying dryer provide a stable low dew point for injection molding?

The plastic auto loader is responsible for the physical movement, metering, and processing of plastic granules before they reach the injection molding machine. Because raw material purity directly affects melt quality, cycle stability, and finished product appearance, the design and material selection of single auto loaders are crucial. Topstar’s TAL series single auto loaders take… Continue reading Stainless steel hopper: Enables contamination-free feeding for the plastic auto loader

The manufacturing tolerance for errors in precision plastic parts is exceptionally low. Even a deviation of a few micrometers can lead to the scrapping of an entire batch of parts and unstable assembly. Unlike traditional product manufacturing and the production of other precision plastic parts, the requirements for dimensional tolerances, repeatability, and melt behavior stability… Continue reading Molding Machine Buying Guide: Key Parameters for Precision Plastic Parts Production

In plastic recycling and injection molding, particle size affects melt uniformity, metering accuracy, drying performance, filtration performance, and ultimately, part quality. Plastic granulators produce particles of varying sizes because a multitude of interacting factors, from material properties to machine geometry and operating parameters, collectively determine particle breakage behavior during the grinding process. For plastic product… Continue reading Why do plastic granulators produce plastic granules of varying sizes?

For modern processors requiring precise and repeatable metering of various raw materials, Screw dosers offer a practical solution. Whether the production line is conveying virgin granules, screened regrind, masterbatch, or functional additives, a well-configured screw feeder can achieve proportional mixing with minimal operator intervention. Simply put, the device transforms the variability of the raw material… Continue reading Wide material compatibility: Screw Dosers are suitable for virgin, regrind materials, and masterbatch

Injection molding efficiency determines a company’s competitiveness; shorter cycle times, higher first-pass yields, and predictable production efficiency directly reduce product costs. In any injection molding plant, the plastic molding machines are the core equipment, and injection molding efficiency depends on six controllable parameters that govern the physical processes of melting, filling, holding pressure, cooling, and… Continue reading 6 Essential Parameters Affecting Injection Molding Efficiency of Plastic Molding Machines

Auxiliary equipment transforms injection molding operations from a single-machine operation into a stable, repeatable production system. While the core task of the injection molding machine is to plasticize and inject molten material into the mold, injection molding auxiliary equipment controls material state, thermal stability, part handling, and process continuity. Without properly configured auxiliary systems, even… Continue reading The Importance of Auxiliary Equipment in Injection Molding Production

When you rely on expensive masterbatches or variable additives, even minor deviations in proportion can lead to economic losses and affect product performance. The Topstar gravimetric blender is designed to address these pain points effectively. As auxiliary equipment specifically designed for injection molding, the Topstar plastic gravimetric blender accurately meters and mixes two to six… Continue reading Why is the Topstar gravimetric blender the best choice for metering and mixing?

In today’s injection molding production, efficiency no longer depends solely on the injection molding machine itself, but rather on the coordinated operation of the entire production system. From material handling and drying to temperature control and automation, injection molding auxiliary equipment plays a crucial role in determining productivity, product consistency, and operating costs. However, many… Continue reading System compatibility: Topstar injection molding auxiliary equipment offers high integration for improved efficienc

The temperature has been precisely set, the injection volume optimized, and the cycle time configured, but the parts still exhibit problems such as splashing, bubbles, or inconsistent mechanical properties. Often, the common cause is moisture. If the plastic dryer for injection molding fails to reach the specified dew point, it cannot completely remove moisture from… Continue reading Why is your plastic dryer for injection molding not reaching the dew point?

Noise, dust, and energy waste are not just disruptions in the production process; they represent real costs. When high-speed granulators hum in plastic recycling or production workshops, businesses incur high electricity bills, worker fatigue, and additional cleanup. Topstar’s soundproof granulator, designed with a low-speed (20-28 rpm) cutting approach, effectively addresses this issue. Topstar combines low-speed… Continue reading Low speed 20~28 rpm: Topstar soundproof granulator achieves energy-saving and low-noise processing

A suitable auto loader directly impacts the output, product quality, and uptime of an injection molding production line. An unsuitable feeder of the wrong size or specifications can lead to insufficient material supply, contamination, increased maintenance costs, and lost production time. A suitable auto loader seamlessly integrates into the production process, reliably delivering clean granules,… Continue reading How to choose the right auto loader to meet the material conveying needs of injection molding?